Topic 14: Stoichiometry, Video C: Mass Based Calculations

Question 1

You must always convert from what to what before you can connect reactants and products.

Answer 1

Mass to moles.

Question 2

How do we do gram to gram stoichiometric calculations?

Answer 2

Grams of A, use the weight of substance A to calculate moles of substance A. Use the coefficients of A and B from the balanced chemical equation to get moles of substance B. Use the molecular weight of substance B to get grams of substance B.

Question 3

What is the first step in Stoichiometric calculations?

Answer 3

Step 1: Write and balance the chemical equation.

Question 4

What is step 2 in stoichiometric calculation.

Answer 4

Convert all masses from grams to moles.

Question 5

Wht is step 3 in stoichiometric calculation?

Answer 5

Use the stoichiometric table to find the LR and predict the moles of desired species. (reactant or product).

Question 6

What is step 4 in stoichiometric calculation.

Answer 6

Convert the moles of product (based on the limiting reagent) to grams of product.